఩ Free ͥ The Darkness Beckons: The History and Development of Cave Diving online ಇ PDF by Martyn Farr ಜ ఩ Free ͥ The Darkness Beckons: The History and Development of Cave Diving online ಇ PDF by Martyn Farr ಜ The underground world presents the last arena for the true pioneering spirit Martyn Farr s The Darkness Beckons charts the history and development of cave diving, from early underwater expeditions in France in the late nineteenth century, through to cutting edge dives across the globe, where iron willed individuals are pushing the limits of equipment and techniques in the pursuit of exploration Cave diving is the natural evolution of caving, where cavers and open water divers overcome the challenges of water filled passages by using specialist breathing apparatus to explore further and deeper than ever before The challenges are many distance, depth, temperature, visibility, rockfall and simple restriction in passage size together with the physical and mental demands placed on an individual in an environment where, despite meticulous preparation, equipment can malfunction and one cannot expect to be rescued if something goes wrong Early cave dives were made using Standard Equipment diving suits, before frogman equipment was adopted by British and Italian divers in the 1940s.Around the same time, Jacques Yves Cousteau and Emile Gagnan designed the compressed air aqualung, the first scuba equipment The development of breathing apparatus has continued, alongside solutions to ever challenging projects, especially those at extreme depth British cave divers, including the author, have been at the forefront of many developments, such as the explorations at Wookey Hole in the Mendips, Keld Head in the Yorkshire Dales and Pozo Azul in Spain Cave diving today is a truly international endeavour, and Farr gives detailed and engaging accounts of developments in Europe, the Americas, Australia and New Zealand, Southern Africa and Farr introduces cave diving s pioneers and chronicles their achievements Among a cast of many are the Britons Graham Balcombe and Mike Boon the American Sheck Exley, who died while attempting to establish a new depth record in the Zacaton sinkhole in Mexico and the outstanding German cave diver and equipment innovator Jochen Hasenmayer The stories of their adventures are charged with courage, danger and excitement, and some have led to tragedy.First published in 1980, this 2017 edition of The Darkness Beckons has been fully revised and updated to reflect the latest developments Featuring over 400 breathtaking photographs and illustrations, and with a foreword by renowned American cave diver and explorer Bill Stone, it is an inspirational read for anyone with an interest in exploration and adventure. 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